EP 4098707 A4 20230927 - INK COMPOSITION FOR WATER-BASED BALLPOINT PEN
Title (en)
INK COMPOSITION FOR WATER-BASED BALLPOINT PEN
Title (de)
TINTENZUSAMMENSETZUNG FÜR KUGELSCHREIBER AUF WASSERBASIS
Title (fr)
COMPOSITION D'ENCRE POUR STYLO À BILLE À BASE D'EAU
Publication
Application
Priority
JP 2020003464 W 20200130
Abstract (en)
[origin: EP4098707A1] An ink composition for a water-based ballpoint pen and a water-based ballpoint pen, which have stable ink flowability even in a so-called fine ballpoint pen, have excellent luster of drawn lines, and do not cause a ball to fall off. The ink composition for a water-based ballpoint pen according to the present invention contains at least an aluminum pigment and 8 to 25 mass% of solid urethane particles with an average particle size of 0.3 to 10 µm.In addition, a water-based ballpoint pen according to the present invention is provided with the ink composition for a water-based ballpoint pen that has the above composition.
IPC 8 full level
C09D 11/18 (2006.01); B43K 1/08 (2006.01); B43K 7/02 (2006.01)
CPC (source: EP KR US)
B43K 1/086 (2013.01 - EP); B43K 7/02 (2013.01 - KR US); C09D 11/17 (2013.01 - US); C09D 11/18 (2013.01 - EP KR US)
Citation (search report)
- [X] US 2006069183 A1 20060330 - KURIHARA NORIMASA [JP], et al
- [X] US 2005143486 A1 20050630 - YOSHIMURA YASUYUKI [JP], et al
- [X] JP 2003034768 A 20030207 - SAKURA COLOR PROD CORP
- [A] EP 1411094 A1 20040421 - SAKURA COLOR PROD CORP [JP]
- See references of WO 2021152779A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4098707 A1 20221207; EP 4098707 A4 20230927; CN 115023473 A 20220906; KR 20220130794 A 20220927; US 2023073595 A1 20230309; WO 2021152779 A1 20210805
DOCDB simple family (application)
EP 20917032 A 20200130; CN 202080094775 A 20200130; JP 2020003464 W 20200130; KR 20227029876 A 20200130; US 202017759825 A 20200130